Title:
SIGNAL PROCESSING DEVICE
Document Type and Number:
Japanese Patent JP2010243247
Kind Code:
A
Abstract:
To solve the problem that a plurality of adjacent targets cannot be detected because input signal characteristics do not match with CFAR (Constant False Alarm Rate) circuit characteristics or incorrect detection is caused due to the failure in suppressing clutter in a conventional CFAR circuit.
A rise in noise level due to a specific amplitude is suppressed by averaging with the maximum value within each reference cell in the CFAR circuit excluded. When there is a broad signal such as clutter, the noise level rises and the incorrect alarm is suppressed by using GO-CFAR.
COPYRIGHT: (C)2011,JPO&INPIT
Inventors:
WATANABE CHUICHI
YOSHIKO HISASHI
YOSHIKO HISASHI
Application Number:
JP2009090201A
Publication Date:
October 28, 2010
Filing Date:
April 02, 2009
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G01S7/32
Domestic Patent References:
| JPH03138585A | 1991-06-12 |
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
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